Me n my girl friend are goin great and i wanna marry her thing is tho. that i been out with loads of girls an i think i truley love her cos with the others i haven't felt this complete and she loves me back the same way its amazing i dont no wether to marry her yet oh and we been going out for 4 months
How old are you mangosam?
4 months isn't long enough to decide whether you want to spend the rest of your life with someone! If you love each other as much as you say you do then there's no problem in waiting a while to see if your feelings change.
Go for it. As you have had a few past relationships its good experience of exactly what you want etc. Age doesnt really come into it only if you are in your early teens etc. I guess ?!